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Why You Shouldn’t Blow Up an Asteroid

cartoon via xkcd.com “Based on the Hollywood treatment of threatening asteroids, and to some extent even on first blush logic, it would seem that the most direct way to deal with an asteroid that threatens an impact with Earth would be to simply send up a bomb of appropriate size and blow it up.  However […]

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Analyzing the Chelyabinsk Meteorite

“The Chelyabinsk meteor that exploded over Russia’s Ural Mountains region earlier this year was found to have either collided with another celestial body or had a close encounter with the sun prior to reaching Earth.” Read more about the ongoing analysis of the Russian meteorite here: http://www.redorbit.com/news/space/1112932345/russian-meteorite-space-encounter-earth-impact-082713/

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A Map of Vesta

This topographic map of the asteroid Vesta was constructed from analyzing more than 17,000 images  that were taken with varying sun and viewing angles by NASA’s Dawn spacecraft. Read more about Dawn and the image here: http://www.jpl.nasa.gov/spaceimages/details.php?id=PIA17037

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